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      No función primaria del injerto hepático: 18 años de experiencia del Hospital Nacional Guillermo Almenara Irigoyen - EsSalud Translated title: Primary non function of hepatic allograft: 18 years’ experience of Guillermo Almenara Irigoyen National Hospital - EsSalud

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          Abstract

          RESUMEN Introducción : La no función primaria del injerto (NFPI) después del trasplante hepático es la falla aguda del injerto, en ausencia de algún factor causal, como trombosis aguda de arteria hepática o vena porta. Objetivos : Describir las características perioperatorias de los pacientes trasplantados de Hígado que presentaron NFPI en el Departamento de Trasplantes del Hospital Guillermo Almenara Irigoyen. Materiales y métodos : Estudio retrospectivo, descriptivo y transversal. Desde marzo del 2000 a marzo del 2018 se realizaron 249 Trasplantes de hígado. La NFPI fue definida con los criterios de OPTN/UNOS, se manifiesta por aumento de transaminasas (>3 000 UI/ml), coagulopatía (INR >2,5), niveles altos de lactato (>4 mEq/l), PH en acidosis: PH arterial ≤7,30 y/o PH venoso ≤7,25 e inestabilidad hemodinámica que requiere soporte con drogas vasoactivas; puede llevar a la muerte sin retrasplante de emergencia. Resultados : Se diagnosticaron 8 pacientes con NFPI siendo una prevalencia de 3,7% de 216 trasplantes de hígado en adultos, la edad de los receptores fue 51,5±8,45 años, score de MELD basal 13,13±3,8 (rango 6-18). Las características de los donantes, la edad fue 38,5±14,48, todos ABO idénticos al receptor, la distribución geográfica: 7 de Lima metropolitana y 1 en Tacna. La causa de muerte encefálica 75% ACV Hemorrágico y 25% TEC grave. Respecto a factores transoperatorios el TIF 431±143 min [265 - 645 min], y TIC 81,8±46 min [57- 195 min], La estancia en UCI hasta el deceso del paciente fue 11,13±9,3 días (rango 2-31 días), el 12,5% fue retrasplantado. Conclusiones : La prevalencia de NFPI en nuestro centro después del trasplante hepático es 3,7% similar a las series reportadas por otros centros, y se asocia con mortalidad alta sin retrasplante hepático.

          Translated abstract

          ABSTRACT Introduction : The primary nonfunction of the graft (PNF) after liver transplantation is acute graft failure, in the absence of some causal factor, such as acute thrombosis of the hepatic artery or portal vein. Objectives : Describe the perioperative characteristics of Liver transplant patients who presented NFPI in the Transplant Department of the Guillermo Almenara Irigoyen Hospital. Materials and methods : Retrospective, descriptive and cross-sectional study. From March 2000 to March 2018; 249 liver transplants were performed. The PNF was defined with y he criteria of OPTN/UNOS, manifested by increased transaminases (>3,000 UI/ml), coagulopathy (INR >2.5), high lactate levels (>4 mEq/l), PH in acidosis: PH arterial ≤7.30 and/or venous ≤7.25 and hemodynamic instability that requires support with vasoactive drugs. It can lead to death without emergency retransplantation. Results : 8 patient with PNF were diagnosed with a prevalence of 3.7%, the age of recipients was 51.5±8.45 years, the base MELD score 13.13±3.8 (range 6-18). The characteristics of the donors, the age was 38.5±14.48 years, all ABO identical to the recipients, the geographical distribution: 7 of metropolitan Lima and 1 in Tacna. The cause of encephalic death 75% hemorrhagic DCV and 25% severe TEC. Regarding transoperative factors, the CIT 431±143 min [265 - 645 min], and WIT 81.8±46 min [57- 195 min], the stay in the ICU until the death of the patients was 11.13±9.3 days (range 2-31 days), 12.5% was retransplant. Conclusions : The prevalence of PNF after liver transplant in our center is 3.7%. Similar to the series reported by other center, and is associated with high mortality without retransplantation.

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          Risk factors for primary dysfunction after liver transplantation--a multivariate analysis.

          In a retrospective analysis on 323 orthotopic liver transplant procedures performed between July 1984 and October 1991 the incidence of two forms of primary dysfunction (PDF) of the liver: primary nonfunction (PNF), and initial poor function (IPF) were studied. The incidence of PDF was 22% (73/323) with 6% PNF (20/323) and 16% IPF (53/323), while 78% (250/323) had immediate function (IF). Occurrence of both IPF and PNF resulted in a higher graft failure rate (P 3 days), older donor age (> 49 years), extended preservation times (> 18 hr), and fatty changes in the donor liver biopsy, as well as reduced-size livers, younger recipient age, and renal insufficiency prior to OLTx, significantly affected the incidence of IPF and PNF. Multivariate analysis of potential risk factors showed that reduced-size liver (P = 0.0001), fatty changes on donor liver biopsy (P = 0.001), older donor age (P = 0.009), retransplantation (P = 0.01), renal insufficiency (P = 0.02), and prolonged cold ischemia times (P = 0.02) were independently associated with a higher incidence of IPF and PNF. No statistical correlation was found between PDF and etiology of ESLD, nutritional status of the recipient, UNOS status, and Child-Pugh classification in this study. We conclude that PNF and IPF are both separate clinical entities that have a significant effect on outcome after OLTx. Routine donor liver biopsies are recommended to decrease the rate of IPF and PNF. The combination of risk factors shown to be significant for PDF should be avoided--and, if that is not possible, the only variable that can be controlled, the preservation time, should be kept as short as possible.
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            The evolution of liver transplantation during 3 decades: analysis of 5347 consecutive liver transplants at a single center.

            To analyze a 28-year single-center experience with orthotopic liver transplantation (OLT) for patients with irreversible liver failure. The implementation of the model for end-stage liver disease (MELD) in 2002 represented a fundamental shift in liver donor allocation to recipients with the highest acuity, raising concerns about posttransplant outcome and morbidity. Outcomes and factors affecting survival were analyzed in 5347 consecutive OLTs performed in 3752 adults and 822 children between 1984 and 2012, including comparisons of recipient and donor characteristics, graft and patient outcomes, and postoperative morbidity before (n = 3218) and after (n = 2129) implementation of the MELD allocation system. Independent predictors of survival were identified. Overall, 1-, 5-, 10-, and 20-year patient and graft survival estimates were 82%, 70%, 63%, 52%, and 73%, 61%, 54%, 43%, respectively. Recipient survival was best in children with biliary atresia and worst in adults with malignancy. Post-MELD era recipients were older (54 vs 49, P < 0.001), more likely to be hospitalized (50% vs 47%, P = 0.026) and receiving pretransplant renal replacement therapy (34% vs 12%, P < 0.001), and had significantly greater laboratory MELD scores (28 vs 19, P < 0.001), longer wait-list times (270 days vs 186 days, P < 0.001), and pretransplant hospital stays (10 days vs 8 days, P < 0.001). Despite increased acuity, post-MELD era recipients achieved superior 1-, 5-, and 10-year patient survival (82%, 70%, and 65% vs 77%, 66%, and 58%, P < 0.001) and graft survival (78%, 66%, and 61% vs 69%, 58%, and 51%, P < 0.001) compared with pre-MELD recipients. Of 17 recipient and donor variables, era of transplantation, etiology of liver disease, recipient and donor age, prior transplantation, MELD score, hospitalization at time of OLT, and cold and warm ischemia time were independent predictors of survival. We present the world's largest reported single-institution experience with OLT. Despite increasing acuity in post-MELD era recipients, patient and graft survival continues to improve, justifying the "sickest first" allocation approach.
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              Liver retransplantation for primary nonfunction: analysis of a 20-year single-center experience.

              Initial graft function following liver transplantation is a major determinant of postoperative survival and morbidity. Primary graft nonfunction (PNF) is uncommon; however, it is one of the most serious and life-threatening conditions in the immediate postoperative period. The risk factors associated with PNF and short-term outcome have been previously reported, but there are no reports of long-term follow-up after retransplant for PNF. At our institution, 52 liver transplants had PNF (2.22%) among 2,341 orthotopic liver transplants in 2,130 patients from 1984 to 2003. PNF occurred more often in the retransplant setting. Female donors, donor age, donor days in the intensive care unit, cold ischemia time, and operating room time were significant factors for PNF. Patient as well as graft survival of retransplant for PNF was not different compared to retransplant for other causes. However, PNF for a second or third transplant did not demonstrate long-term survival, and hospital mortality was 57%. In conclusion, retransplant for PNF in the initial transplant can achieve relatively good long-term survival; however, if another transplant is needed in the setting of a second PNF, the third retransplant should probably not be done due to poor expected outcome. (c) 2007 AASLD.
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                Author and article information

                Journal
                rgp
                Revista de Gastroenterología del Perú
                Rev. gastroenterol. Perú
                Sociedad de Gastroenterología del Perú (Lima, , Peru )
                1022-5129
                October 2020
                : 40
                : 4
                : 315-321
                Affiliations
                [1] Lima orgnameEsSalud Perú
                Article
                S1022-51292020000400315 S1022-5129(20)04000400315
                10.47892/rgp.2020.404.1171
                9a4cba64-8997-4565-a408-6fb8b7815277

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 13 March 2019
                : 13 October 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 18, Pages: 7
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                SciELO Peru

                Categories
                Artículos originales

                Mortality,Trasplante hepático,Injerto de hígado,Mortalidad,Liver transplantation,Grafting, liver

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